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ES294087A1
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Hydraulic feed perforator (Machine-translation by Google Translate, not legally binding)
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US2999550A
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Drilling machine
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DE1173409B
|
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Electric drill with variable feed
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GB812869A
|
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Improvements in and relating to a drilling machine
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US2905440A
|
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Variable feed electric drilling machines
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GB686281A
|
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Machine for tubing and detubing multitubular boilers
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IE19434L
|
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Drilling machine.
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US2683375A
|
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Drilling machine drive
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DE810140C
|
|
Electric hammer
|
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IE18740L
|
|
Drilling machine.
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GB657310A
|
|
Drilling machine
|
|
US2547079A
|
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Transmission for drilling machines
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GB598265A
|
|
Electric motor and brake unit
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CA523147A
|
|
Drilling machine
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CA581042A
|
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Variable feed electric drilling machines
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