Novelty ruler

Details Novelty ruler Novelty ruler

1985-09-30

1988-04-12

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

Patent

active

D02951509

REFERENCES:
patent: D29328 (1898-09-01), Carver
patent: D265726 (1982-08-01), Farrell
patent: D280300 (1985-08-01), Short
patent: D282449 (1986-02-01), Richardson

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