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Hughes-Owens Slide Rules
Part 2 - Models 341 3010 to 341 3738


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Hughes Owens

Hughes-Owens
1760
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1778
Hughes Owens

Hughes-Owens
341 3010
to
341 3738
Geotec

Geotec
341 3010
to
341 3690
COMING SOON



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Hughes-Owens 1967 Catalog Data
Model Number Date Description
Scales
Equivalents Comments
341 3010
341 3010 (front), Click for bigger pic, browser BACK to return
341 3010 (back), Click for bigger pic, browser BACK to return
1965-1968 10" Versalog Ib, 23 scales

LL0 LL/0 K DF [ CF CIF CI C ] D R1 R2 L

LL/1 LL/2 LL/3 [ TT SecT ST CosS C ] D LL3 LL2 LL1
H-O 1777
Geotec 341 3010
Post 1460
Versalog Ib, COS scale in green
341 3050
341 3050 (front), Click for bigger pic, browser BACK to return
341 3050 (back), Click for bigger pic, browser BACK to return
1965-1968 5" Versalog Ib, 23 scales

LL0 LL/0 K DF [ CF CIF CI C ] D R1 R2 L

LL/1 LL/2 LL/3 [ TT SecT ST CosS C ] D LL3 LL2 LL1
H-O 1778
Geotec 341 3050
Post 1461
Pocket Version of 341 3010
341 3120
1965-1968 10" Versatrig, 18 scales

K DF [ CF CIF CI C ] D R1 R2

L A [ TT SecT ST CosS C ] D DI
H-O 1776
Post 1450
T-P 44CA-500
Versatrig
341 3130
1965-1968 10" Vectolog, 18 scales

LL3 LL2 DF [ CF CIF CI C ] D L LL1

K A [ B TI2 TI1 SI ] D DI
Hemmi P253
H-O 1774-00
Vectolog
341 3155
1965-1968 10" Commerce, 17 scales

DF [ CF CIF CI C ] D LL

P1 P2 A N [ M L S/d C ] D G
Hemmi P263 For business applications. PVC plastic
341 3215
341 3215 (front), Click for bigger pic, browser BACK to return
341 3215 (back), Click for bigger pic, browser BACK to return
341 3215 (slide back), Click for bigger pic, browser BACK to return
1965-1968 10" Mannheim, 9 scales

A [ B CI C ] D K

[ S L T ]
Hemmi 50W
H-O 1771
Geotec 341 3215
Post 1452W
T-P 44BA-520
Universal Mannheim.
341 3235
1965-1968 20" Mannheim, 9 scales

inches // A [ B CI C ] D K

[ S L T ]
Hemmi 50-20
H-O 1772
20" version of 341 3215.
Much more massive than comparable K&E N4053-5.
341 3405
1965-1968 4" Mannheim, magnifying cursor, 8 scales

in // A [ B CI C ] D || cm

[ S L T ]
Hemmi 32
H-O 1760
Post 1441
T-P 44DA-410
4" version of 341 3215, with magnifying cursor.
341 3425
1965-1968 5" Mannheim, 9 scales

in // A [ B CI C ] D K

[ S L T ] - S is read against A
Hemmi 34RK
H-O 1762
Geotec 341 3425
Post 1444RK
T-P 44DA-440
5" version of 341 3215.
341 3500
341 3500 (front), Click for bigger pic, browser BACK to return
341 3500 (back), Click for bigger pic, browser BACK to return
341 3500 (slide back), Click for bigger pic, browser BACK to return
1965-1968 8" student Mannheim, 10 scales

K DF [ CF CI C ] D A

[ TI L SI ]
Hemmi 45RK*
Post 1445
HoCo and Post are folded at pi; Hemmi 45K is folded at sqrt(10).
341 3526
341 3526 (front), Click for bigger pic, browser BACK to return
341 3526 (back), Click for bigger pic, browser BACK to return
341 3526 (slide back), Click for bigger pic, browser BACK to return
1965-1968 10" student Mannheim, 9 scales

A [ B CI C ] D K

[ S L T ]
Hemmi 40RK
H-O 1768C
Geotec 341 3526
Post 1447
US Blue 1877
Student version of 341 3215.
341 3550
1965-1968 10" Electronics Hemmi 266 Electronics
341 3714
1965-1968 Classroom Student, 9 scales

A [ B CI C ] D K

[ S L T ]
unknown 54" classroom slide rule. Made of genuine northern hardwoods.
341 3734
1965-1968 Projection Student, 9 scales

A [ B CI C ] D K

[ S L T ]
Post 1447DP Projection version of 341 3526 student Mannheim
341 3738
1965-1968 Projection Versalog, 23 scales

LL0 LL/0 K DF [ CF CIF CI C ] D R1 R2 L

LL/1 LL/2 LL/3 [ TT SecT ST CosS C ] D LL3 LL2 LL1
Post 1460DP Projection version of 341 3010 Versalog Ib

Archive Navigation, CLICK on the LOGO to Visit
Hughes Owens

Hughes-Owens
1760
to
1778
Hughes Owens

Hughes-Owens
341 3010
to
341 3738
Geotec

Geotec
341 3010
to
341 3690
COMING SOON



CLICK
to go to the
CATALOG
Archive
Go to the Sun/Hemmi Archive
HEMMI

CLICK
to go to the
Hemmi/Sun
Archive
Click to go to the Main POST Archive


CLICK
to go to the
POST
Archive
Go to the Teledyne Archive


CLICK
to go to the
Teledyne
Archive

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