Heinrich Geissler: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Anniversary information added. | May 22, 2026 | ||
| Anniversary information added. | Jan 20, 2026 | ||
| First paragraph modernization. | Mar 05, 2024 | ||
| Add new Web site: Academia - Heinrich Geissler: Pioneer of Electrical Science and Vacum Techonolgy. | Jun 11, 2017 | ||
| Add new Web site: Academia - Heinrich Geissler: Pioneer of Electrical Science and Vacum Techonolgy. | Jun 11, 2017 | ||
| Added URL to topic: The Catholic Encyclopedia - Biography of Pietro della Valle. | Sep 02, 2009 | ||
| Article revised. | Dec 21, 2001 | ||
| Article added to new online database. | Jul 20, 1998 |
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