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BS 139:1921 | 1 Jan 1921 | BSI Knowledge
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BS 139:1921
Red fir wood poles for telegraph and telephone lines
Published:
1 Jan 1921
•
Withdrawn:
Date not available
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Product Details
Descriptors
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ICS Codes
29.240.99 Other equipment related to power transmission and distribution networks
Committee
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International relationships
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ISBN
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Publisher
BSI