Title:
Door-control mechanisms for hopper cars
United States Patent 3122106


Inventors:
Novelli, Frank G.
Application Number:
US13159561A
Publication Date:
02/25/1964
Filing Date:
08/15/1961
Assignee:
Novelli, Frank G.
Primary Class:
Other Classes:
105/249, 105/255, 105/290, 105/304, 222/485, 222/503, 298/30
International Classes:
B28C7/00; B61D7/28; F16K11/074
View Patent Images:
US Patent References:
2723878Dump wagon1955-11-15
2058530Lifting means and sideward driving mechanism for automobiles1936-10-27
1928305Automobile parking device1933-09-26
1297356N/A1919-03-18
0757931N/A1904-04-19
Foreign References:
AU215647B
CA569890A1959-02-03