American national standard safety code for elevators, dumbwaiters, escalators, and moving walks : covering their design, construction, installation, operation, inspection, testing, maintenance, alteration, and repair /
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| Corporate Authors: | , |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
New York :
American Society of Mechanical Engineers,
1978.
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| Edition: | 9th ed. |
| Subjects: |