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3691961
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Information
Patent Grant
3691961
References
Source
Patent Number
3,691,961
Date Filed
Not available
Date Issued
Tuesday, September 19, 1972
51 years ago
CPC
B61B13/122 - Pneumatic systems
B61C11/00 - Locomotives or motor railcars characterised by the type of means applying the tractive effort Arrangement or disposition of running gear other than normal driving wheel
B65G35/005 - with peristaltic propulsion along a flexible tube
US Classifications
104 - Railways
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