Web detector for printing presses
United States Patent 1978589

Inventors:
Mcfarlane, Maynard D.
Publication Date:
10/30/1934
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Assignee:
Mcfarlane, Maynard D.
Primary Class:
250/239
Other Classes:
250/559.430, 55/DIG.034, 313/15, 250/238, 55/385.600, 313/22, 38/1C
International Classes:
B41F33/18; B41F33/00