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US3211093A
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Expendible gun assembly for perforating wells
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US2725940A
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Dump bailer for wells
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US2621895A
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Severable safety joint for pipe strings
|
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US2725820A
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Explosive jarring device
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US2756677A
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Well perforating device
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US2621745A
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Setting tool
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US2621744A
|
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Plugging device
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US2550964A
|
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Device for determining point at which pipe is stuck in a well
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US2551031A
|
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Gun perforator
|
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US2605834A
|
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Perforating gun for well casings
|
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US2565788A
|
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Gun perforator for well casings
|
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US2565789A
|
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Well casing gun perforator
|
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US2589599A
|
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Releasable rope socket with weight indicator
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US2530805A
|
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Casing perforating gun
|
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US2591319A
|
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Casing perforating gun
|
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US2597409A
|
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Internally fired perforating gun
|
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US2530844A
|
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Gun perforator
|
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US2509657A
|
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Gun perforator
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US2530834A
|
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Electrically fired perforating gun
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US2530833A
|
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Gun perforator
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