1. The alarm circuit.

2. Johnson, ready for alarm-circuit interrupt.

3. Preparing to sever master alarm circuit.

4. Environmental equipment alarm circuit verification system and method

5. Once the seat belt is inserted into the belt buckle, an alarm circuit is activated.

6. A tamper alarm circuit for detecting a tampered condition of a utility meter is disclosed.

7. A modular fuse (10) has a main fuse (20) connected in parallel with an alarm circuit assembly (49).

8. The infrared anti-theft alarm, consisting of an infrared detection circuit and an alarm circuit, is a practical self-defense deterrence warning tool.

9. One source of multiple matches for Alinement near the beginning of its rise in the late 1890s and early 1900s was the Official Gazette of the United States Patent Office.Here's a patent description for an electric fire-alarm circuit and signal-box (September 29, 1896):