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Dispatch tube system
US 2,815,182 A
Filed
: 09/27/1955
Issued
: 12/03/1957
Est. Priority Date
: 10/01/1954
Status: Expired due to Term
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18
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18 Citations
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Current Assignee
Fritz H. Mittag
,
Horst Ringhandt
Original Assignee
Fritz H. Mittag
,
Horst Ringhandt
Inventors
Mittag, Fritz H.
,
HORST RINGHANDT
Application Number
US03/536,947
Time in Patent Office
798 Days
Field of Search
US Class Current
406/5
CPC Class Codes
B65G 51/44
without mechanical contact ...
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