Title:
Percussive device
United States Patent 1768718


Inventors:
Richard, Soderberg Carl
Application Number:
US20881127A
Publication Date:
07/01/1930
Filing Date:
07/27/1927
Assignee:
WESTINGHOUSE ELECTRIC & MFG CO
Primary Class:
International Classes:
B25D11/06; B25D13/00; H02K33/04; H02K33/12
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