Combined ruler and letter opener

Details Combined ruler and letter opener Combined ruler and letter opener

1979-08-13

1981-11-03

Holtje, Nelson C.

Tools and hardware

Other tools and implements

Cutting

D10 71, D0803

Patent

active

D02616122

REFERENCES:
patent: D92791 (1934-07-01), Burgess
patent: D107570 (1937-12-01), Erk
patent: D141490 (1945-06-01), Henderson
patent: D169226 (1953-03-01), Sandberg
patent: D172945 (1954-09-01), Baker
patent: D177697 (1956-05-01), Salm
patent: D235091 (1975-05-01), Daenen
patent: D245109 (1977-07-01), Yoshioka
patent: D252973 (1979-09-01), Bateman
patent: 418870 (1890-01-01), Hazlett
patent: 1453900 (1923-05-01), Ahearn
Grammes Cat.-Advertising Specialties .COPYRGT.1939, p. 20, Letter Opener-Ruler, 2nd from top.

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