|
US740062A
|
|
Electric ignition device for gas-burners.
|
|
GB190120361A
|
|
Improvements in Apparatus for Generating Acetylene Gas
|
|
GB190118093A
|
|
Improvements in or relating to Electric Gas Lighters
|
|
GB190106904A
|
|
Improvements in Apparatus for Generating Acetylene Gas
|
|
US658299A
|
|
Electric gas-lighter.
|
|
GB189923877A
|
|
Improvements in or relating to Electric Gas Lighters.
|
|
GB189823675A
|
|
Improvements in or relating to Generators for Acetylene Gas.
|
|
US641417A
|
|
Acetylene-gas apparatus.
|
|
GB189801584A
|
|
Improvements in Apparatus for the Production of Acetylene Gas.
|
|
GB189729571A
|
|
Acetylene Gas Producer.
|
