489 resultados para Seals (Nmismatics)
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Includes indexes.
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Mode of access: Internet.
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Edited by George F. Warner, keeper of mss.
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Cover title.
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The feasibility of using indium seals for large vacuum bell jars has been investigated. It is shown that such seals can be made; however, use of this type seal for repetitive operations is not recommended.
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Mode of access: Internet.
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Edited by Sir E. M. Thompson, keeper of mss.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Letterpress on verso of each plate.
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Mode of access: Internet.
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No more published?