Toy train whistle

Details Toy train whistle Toy train whistle

1985-05-29

1987-11-17

Rademaker, Charles A.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

D21 64, D21129

Patent

active

D02927799

REFERENCES:
patent: D138711 (1944-09-01), Hickling
patent: D173649 (1954-12-01), Fleishman
patent: D263382 (1982-03-01), Moore
patent: D283017 (1986-03-01), Henry
patent: 362397 (1887-05-01), Pinnell

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