Douglas Patten Hardin

Agriculture Teachers Directory

• Categories: Agricultural education

• Type: Book
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• Published: 1980
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• Publisher: Unknown

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A Miscellaneous Collection of Iowa School Reports

• Categories: Public schools

• Type: Book
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• Published: 1854
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• Publisher: Unknown

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American Doctoral Dissertations

• Categories: Dissertation abstracts

• Type: Book
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• Published: 1985
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• Publisher: Unknown

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Index of Patents Issued from the United States Patent Office

• Author(s): United States. Patent Office

• Categories: Patents

• Type: Book
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• Published: 1973
• -
• Publisher: Unknown

pt. 1. List of patentees.--pt. 2. Index to subjects of inventions.

Index of Patents Issued from the United States Patent and Trademark Office

• Categories: Patents

• Type: Book
• -
• Published: 1993
• -
• Publisher: Unknown

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