|
GB174051A
|
|
Improvements in swivel pipe couplings
|
|
DE394078C
|
|
Articulated pipe connection
|
|
GB189852A
|
|
Improvements in pipe couplings of the swivel type
|
|
US1510548A
|
|
Pipe coupling
|
|
US1476704A
|
|
Engine exhaust means
|
|
GB150314A
|
|
Improvements in pipe couplings
|
|
GB138630A
|
|
Improvements in pipe couplings
|
|
US1492076A
|
|
Method for making tubes
|
|
US1492075A
|
|
Tube
|
|
US1368919A
|
|
Coupling for pipes
|
|
GB144845A
|
|
Improvements in apparatus for silencing gaseous currents
|
|
US1410160A
|
|
Method of and apparatus for forming flexible tubes
|
|
US1329759A
|
|
Pipe-coupling
|
|
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|
|
Swiveled pipe-union
|
|
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|
|
Muffler
|
|
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|
|
Tube
|
|
US1327195A
|
|
Tube
|
|
US1492067A
|
|
Apparatus for making tubes
|
|
US1383187A
|
|
Apparatus for making tubes
|
|
US1340818A
|
|
Flexible tube
|
