159 resultados para circular grating
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Mode of access: Internet.
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Mode of access: Internet.
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Description based on: New ser., no. 4 (Mar. 21, 1904); title from caption.
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Title from caption.
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Mode of access: Internet.
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Mode of access: Internet.
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Description based on: No. 42 (May, 1922); title from cover.
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No. 530 also issued as Southern farm management publication no. 4.
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Some no. issued by the division under a variant name: Extension Service.
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Mode of access: Internet.
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Some numbers issued in revised editions.
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Description based on: No. 16 (Mar. 1936).
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Description based on surrogate of: 486, issued Sept. 1938, revised Sept. 1939; title from cover.
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Title from cover.
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None published, 1891-1914.